BUYTUS 1PCS 3"/4" Wet/Dry Diamond Polishing Pad Flexible Grinding Discs for Granite Marble Stone Concrete Floor(1 Pc-4 Inches,800). Package : 1piece;Diameter : 3 inch/80mm OR 4 inch/100mm;Thickness : 3 mm;Hole : 16 mm Use : Dry / Wet ;Material : diamond and resin;Grits : #30, #50, #100, #150, #200,#300, #400, #500, #800,#1000,#1500,#2000,#3000,#5000,#6000,#8000 Dry/Wet polishing pad;Flexible and smooth polishing;Polishing with quick speed and without scrach Suitable for different RPM;Application:Our resin floor polishing pads are specially designed for polishing concrete,granite,marble,limestone and all kinds stones. 100mm / 4inch Diamond Polishing Pad;80mm /3inch Diamond Polishing Pad Farbe:1 Pc-4 Inches